3 Inch Stainless Steel Air Vents Louver Grille Round Vent Cover for Ventilation
D. Usefulness;. STAINLESS STEEL: This soffit vent is made of stainless steel, sturdy for ventilation usage. WIDELY USE: Ceiling vent is suitable for indoor or outdoor ventilation, such as kitchen, bedroom, bathroom, office, school, attic, warehouse and so on.